[PATCH] D46109: [ARM, AArch64] Add intrinsics for dot product instructions

[Junmo Park via Phabricator via llvm-commits]

flyingforyou added inline comments.


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Comment at: test/CodeGen/arm-neon-dot-product.c:1
+// RUN: %clang_cc1 -triple armv8-linux-gnueabihf -target-cpu cortex-a57 -target-feature +dotprod \
+// RUN: -disable-O0-optnone  -emit-llvm -o - %s | opt -S -instcombine | FileCheck %s
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efriedma wrote:
> flyingforyou wrote:
> > I think proper target is cortex-a55 or cortex-a75.
> > Do we need  check routines for wrong target-cpu?
> This is working as intended, I think: target-feature overrides target-cpu.
dotprod is ARMv8.2's addition feature not ARMv8. Cortex-a57 only supports ARMv8 which couldn't have dotprod feature. Am I missing something?


Repository:
  rL LLVM

https://reviews.llvm.org/D46109